| Article ID: | iaor20063577 |
| Country: | Spain |
| Volume: | 1 |
| Issue: | 2 |
| Start Page Number: | 3 |
| End Page Number: | 33 |
| Publication Date: | Nov 1996 |
| Journal: | Fuzzy Economic Review |
| Authors: | Ostasiewicz W. |
| Keywords: | economics |
Paper is addressed the main philosophical problems which concern both fuzziness and randomness as well as uncertainty and vagueness. It is argued that uncertainty and vagueness are ontologically different empirical phenomena, which are studied within different formal theories of probabilities and fuzzy subsets. A short historical development of various concepts of sets is also presented.